[junto]

   "Oh, East is East, and West is West, and never the twain shall meet." 
   Rudyard Kipling

Jokes aside, I think the OP is generalizing. Personally I get on fine with the vast majority of business people.

I don't get on with people that are incompetent. I also don't get on with people who have a lot to learn but pretend they don't. Some of those are business people. Some of them are fellow programmers.

Normally business people (sales) have features in mind that they know (or think) customers want. Customers often think they want something to deliver a business process that solves a particular problem, but might not be the most efficient process. Programmers are concerned with the management and control of their code-base. Often programmers cannot see the financial or business case for a new feature request. In many cases, it isn't really their job to do so, but it does help to understand the requirement.

As a result the two parties often have problems seeing eye to eye. However, this is a good thing. If we agreed with everything business people wanted then we'd have applications full of features, many of which nobody wanted. If programmers got their way then we'd have applications that no clients would want to use and buy.

In general each party has a niche of knowledge that the others don't. When each party can learn to appreciate the experience and knowledge of the others, then they can work together successfully.